CN101672574B - Upper-supporting wheel axle of chain grate - Google Patents
Upper-supporting wheel axle of chain grate Download PDFInfo
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- CN101672574B CN101672574B CN2009101745294A CN200910174529A CN101672574B CN 101672574 B CN101672574 B CN 101672574B CN 2009101745294 A CN2009101745294 A CN 2009101745294A CN 200910174529 A CN200910174529 A CN 200910174529A CN 101672574 B CN101672574 B CN 101672574B
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- supporting wheel
- support roller
- wheel axle
- main shaft
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Abstract
The invention disclose an upper-supporting wheel axle of a chain grate, particularly being located on a thermoregulation preheating section and a preheating section; the upper-supporting wheel axle of the chain grate comprises a supporting wheel main axle for mounting a supporting wheel and two auxiliary axles fixedly installed on both ends of the supporting wheel main axle; the upper-supporting wheel main axle is supported by bearings installed on both ends of the two auxiliary axles; the upper-supporting wheel main axle and the two auxiliary axles are all in a hollow structure; the upper-supporting wheel main axle is internally installed with an inner tube which is provided with two closed ends, and a predetermined gap is arranged between the inner wall of the upper-supporting wheel main axle and the outer wall of the inner tube; and the two auxiliary axles are respectively provided with an air inlet and an air outlet. The upper-supporting wheel axle provided by the invention is used for improving the cooling effect and increasing the service life of the upper-supporting wheel axle.
Description
Technical field
The present invention relates to drying grate, particularly a kind of upper-supporting wheel axle of chain grate.
Background technology
In the prior art, the method for preparing pellet mainly contains three kinds, is respectively: shaft furnace is produced the pelletizing method, and belt type roasting machine prepares the pelletizing method, the grate kiln legal system is equipped with the pelletizing method.Two kinds of methods of grate kiln method and other are compared, and have the multiple advantage that good product quality, unit production capacity are big, be applicable to large-scale production, are therefore used widely.
Drying grate is that the iron content pellet is placed on the moving at a slow speed comb plate of going; The thermal current that utilizes central cooler waste heat and rotary kiln to discharge carries out drying (can be divided into dry a section and dry two sections), preheating (can be divided into temperature adjustment preheating section and preheating section) to green-ball, then directly sends into the equipment that rotary kiln carries out roasting.
Drying grate is to realize motion through head sprocket, and the chain comb device in the drying grate supports through support roller, and the chain comb device in the drying grate can drive support roller and rotate in motion process.Said support roller supports through upper-supporting wheel axle of chain grate.Because at preheating section (can be divided into temperature adjustment preheating section and preheating section); Environment temperature is than higher; Can reach several Baidu even thousands of degree; Therefore the upper-supporting wheel axle of chain grate that is positioned at temperature adjustment preheating section and preheating section need cool, and has enough strength and stiffness to guarantee said upper-supporting wheel axle of chain grate.
Existing upper-supporting wheel axle generally through at the inner logical cooling air of upper-supporting wheel axle, is realized the cooling of upper-supporting wheel axle.Because upper-supporting wheel axle is long, generally about several meters, the cooling air quantity that therefore needs is bigger, and cooling effect is undesirable.
Therefore, how a kind of upper-supporting wheel axle of chain grate being provided, solving the cooling problem of the upper-supporting wheel axle of chain grate that is positioned at temperature adjustment preheating section and preheating section, is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of upper-supporting wheel axle of chain grate, be used to improve the cooling effect of the drying grate holder upper-supporting wheel axle that is positioned at temperature adjustment preheating section and preheating section.
The present invention provides a kind of upper-supporting wheel axle of chain grate, is positioned at temperature adjustment preheating section and preheating section; Said upper-supporting wheel axle of chain grate comprises the last support roller main shaft that is used to install support roller, and assists axle with said hard-wired two of the support roller main shaft two ends of going up;
The said support roller main shaft of going up is through being installed in the bearings at two said auxilliary axle two ends;
Said upward support roller main shaft and two said auxilliary axles are hollow structure; And the interior pipe of closed at both ends is installed in the support roller main shaft, and said going up between support roller main shaft inwall and the said outer wall of inner tube has predetermined gap on said;
Two said auxilliary axles are respectively arranged with air inlet and air outlet.
Preferably, said interior pipe comprises interior tube body, is positioned at said tube body two ends, and two Taper Pipes that are fixedly connected with said interior tube body.
Preferably, said Taper Pipe passes through the sealing plate sealing and fixing away from the end of tube body in said, and said sealing plate is specially flat board or arc plate.
Preferably, said interior pipe is fixed through being welded on said interior pipe and the said at least one group of back-up block of going up between the support roller main shaft inwall.
Preferably, each Taper Pipe of said interior pipe and said going up between the support roller main shaft inwall are welded one group of back-up block.
Preferably, every group of said back-up block comprises and said first chapelet piece going up the welding of support roller main shaft inwall, with second chapelet piece of said Taper Pipe welding; Said first chapelet piece welds fixing with said second chapelet piece mutually.
Preferably, said first chapelet piece has the curved surface that matches with said upward support roller main shaft inwall.
Preferably, said first chapelet piece is specially and has and said the match square steel of cambered surface of support roller main shaft inwall of going up.
Preferably, said second chapelet piece has the curved surface that matches with said Taper Pipe.
Preferably, said second chapelet piece is specially the metal derby with the curved surface that matches with said Taper Pipe.
Because the last support roller main shaft of the said upper-supporting wheel axle of chain grate of the embodiment of the invention and two said auxilliary axles are hollow structure; And the interior pipe of closed at both ends is installed in the support roller main shaft on said; And said going up between support roller main shaft inwall and the said outer wall of inner tube left predetermined gap; Like this, when the air inlet that is arranged on said auxilliary axle was passed into the normal temperature pressure wind, said pressure wind can be along the said Clearance Flow that goes up between support roller main shaft inwall and the said outer wall of inner tube; Thereby take away heat, discharge from the air outlet of the auxilliary axle of another root again.Like this, pressure wind can fully cool off the said support roller main shaft of going up, and can improve the cooling effect of the said upper-supporting wheel axle of chain grate of the embodiment of the invention.
Description of drawings
Fig. 1 is the said upper-supporting wheel axle of chain grate front view of the embodiment of the invention;
Fig. 2 is an III shown in Figure 1 portion enlarged drawing;
Fig. 3 is the said support roller main shaft front view of going up of the embodiment of the invention;
Fig. 4 is that A-A shown in Figure 3 is to view.
The specific embodiment
Drying grate is that the iron content pellet is placed on the moving at a slow speed comb plate of going; The thermal current that utilizes central cooler waste heat and rotary kiln to discharge carries out drying (can be divided into dry a section and dry two sections), preheating (can be divided into temperature adjustment preheating section and preheating section) to green-ball, then directly sends into the equipment that rotary kiln carries out roasting.
Drying grate is to realize motion through head sprocket, and the chain comb device in the drying grate supports through support roller, and the chain comb device in the drying grate can drive support roller and rotate in motion process.The said support roller of going up supports through upper-supporting wheel axle of chain grate (abbreviation upper-supporting wheel axle).
Specification according to drying grate; Below drying grate; Along the drying grate direction of motion; A plurality of upper-supporting wheel axle of chain grate are set, and the interval between the said upper-supporting wheel axle of chain grate is changeable, can guarantee the normal even running of the chain comb device in the drying grate as long as can guarantee the support roller of installing on the said upper-supporting wheel axle of chain grate.
Because at preheating section (can be divided into temperature adjustment preheating section and preheating section); Environment temperature is than higher; Can reach several Baidu even thousands of degree, the upper-supporting wheel axle that therefore is positioned at temperature adjustment preheating section and preheating section need cool, to guarantee the intensity and the rigidity of upper-supporting wheel axle.
The present invention provides a kind of upper-supporting wheel axle of chain grate, is used to improve the cooling effect of the upper-supporting wheel axle that is positioned at temperature adjustment preheating section and preheating section, increases the service life.
Better understand the described upper-supporting wheel axle of chain grate that is positioned at temperature adjustment preheating section and preheating section of the embodiment of the invention for the ease of those skilled in the art, be elaborated below in conjunction with concrete accompanying drawing.
Referring to Fig. 1 to Fig. 4, Fig. 1 is the said upper-supporting wheel axle of chain grate front view of the embodiment of the invention; Fig. 2 is an III shown in Figure 1 portion enlarged drawing; Fig. 3 is the said support roller main shaft front view of going up of the embodiment of the invention; Fig. 4 is that A-A shown in Figure 3 is to view.
The said upper-supporting wheel axle of chain grate that is positioned at temperature adjustment preheating section and preheating section of the embodiment of the invention can comprise the last support roller main shaft 1 that is used to install the support roller (not shown), and assists axle 21,22 with said hard-wired two of support roller main shaft 1 two ends of going up.
The said support roller main shaft 1 of going up supports through the bearing (not shown) that is installed in two said auxilliary axle 21,22 two ends.
Said upward support roller main shaft 1 and two said auxilliary axles 21,22 are hollow structure; And the interior pipe 3 of closed at both ends is installed in the support roller main shaft 1, and said going up between support roller main shaft 1 inwall and said interior pipe 3 outer walls has predetermined gap on said.
The effect of this predetermined gap is that pressure wind (or claiming cooling air) is passed through smoothly, and said predetermined gap cooling effect is as required set.Said predetermined gap specifically can be 20-40mm.
In order to guarantee to enter into said gap of going up between support roller main shaft 1 inwall and said interior pipe 3 outer walls from the pressure wind (cooling air) that air inlet gets into; Realize smooth water conservancy diversion; Tube body 31 in pipe 3 can comprise in said; Be positioned at said tube body 31 two ends, and two Taper Pipes 33 that are fixedly connected with said interior tube body 31.Can adopt welding manner to fix between the two ends of interior tube body 31 and two Taper Pipes 33.Pass through sealing plate 32 sealing and fixing at Taper Pipe 33 away from the end of tube body in said 31.
In order further to improve the water conservancy diversion effect, sealing plate 32 specifically can be arc plate or the spherical plate that cooperates with the end face of Taper Pipe 33, through welding Taper Pipe 33 and sealing plate 32 sealing and fixing.
Pipe 3 specifically can be fixed through being welded on said interior pipe 3 and the said at least one group of back-up block of going up between support roller main shaft 1 inwall in said.
Every group of back-up block can include only two back-up blocks of or the welding that cooperatively interacts.
One group of back-up block preferably includes and said first chapelet piece 311 going up the welding of support roller main shaft 1 inwall, with second chapelet piece 312 of said Taper Pipe 33 welding; Said first chapelet piece 311 is welded to each other fixing with said second chapelet piece 312.
Can have contacted contact plane between said first chapelet piece 311 and said second the chapelet piece 312, specifically weld said contact plane and realize fixing through welding manner.
Said first chapelet piece 311 can have and the said support roller main shaft 1 inwall curved surface that matches of going up.Said first chapelet piece 311 also can be cylindrical shape.
Said first chapelet piece 311 specifically can be for having and said the match square steel of cambered surface of support roller main shaft 1 inwall of going up.
Said second chapelet piece 312 has the curved surface that matches with said Taper Pipe 33.Said second chapelet 312 is specially the metal derby with the curved surface that matches with said Taper Pipe.
For pipe 3 in guaranteeing and the said stability that goes up position between the support roller main shaft 1, each Taper Pipe 33 and said going up between support roller main shaft 1 inwall all are welded with one group of back-up block.
Every group of back-up block can include only two back-up blocks of or the welding that cooperatively interacts.
Every group of said back-up block preferably can comprise and said first chapelet piece 311 going up the welding of support roller main shaft 1 inwall, with second chapelet piece 312 of said Taper Pipe 33 welding; Said first chapelet piece 311 is welded to each other fixing with said second chapelet piece 312.
Two said auxilliary axles 21,22 are respectively arranged with air inlet and air outlet (not shown).Specifically end can be provided with air inlet in said auxilliary axle 21 (or 22), and end sets out the air port in said auxilliary axle 22 (or 21).
Referring to Fig. 2, said going up can be through the welding manner fixed installation between support roller main shaft 1 and the auxilliary axle 21.Concrete auxilliary axle 21 can have connecting portion and the positive stop lug boss that cooperates with said upward support roller main shaft 1; Said connecting portion can be inserted into the said end that support roller main shaft 1 cooperates with auxilliary axle 21 connecting portions of going up; Make positive stop lug boss prop up the said end face of going up support roller main shaft 1; End face through with positive stop lug boss and last support roller main shaft 1 is welded to each other, and realizes fixed installation.
Because the said support roller main shaft 1 of going up is hollow structure with auxilliary axle 21,22; And said auxilliary axle 21 (or 22) end is provided with air inlet; Therefore; Can be from the pressure wind (or claiming cooling air) that air inlet gets into smoothly through said support roller main shaft 1 and the auxilliary axle 21,22 gone up, end sets out the air port discharge from said auxilliary axle 22 (or 21).
Air inlet is to be that air inlet is sent into pressure wind through the air blast that is arranged on one side.Said pressure wind can be the normal temperature pressure air that air blast is sent into.
In order to practice thrift cost, the air inlet of a plurality of said upper-supporting wheel axle of chain grate can a shared air blast.A general air blast can use for 10-15 said upper-supporting wheel axle of chain grate, and air blast is through being connected respectively to each air inlet being in charge of of corresponding number.
Because the pressure wind that is admitted to (or claiming cooling air) is air, and the pressure wind after using do not have contaminatedly, so air outlet can adopt the mode of discharging directly into atmosphere to design.Certainly, the pressure wind that air outlet is discharged utilizes again, can consider to be used for the drying grate dryer section and use.
According to the specification of drying grate, 3-6 support roller (not shown) can be installed on each upper-supporting wheel axle of chain grate, support roller can adopt the form fix that is similar to flange to be installed on the last support roller main shaft 1 of upper-supporting wheel axle of chain grate.
Because the last support roller main shaft 1 of the said upper-supporting wheel axle of chain grate of the embodiment of the invention and two said auxilliary axles 21,22 are hollow structure; And the interior pipe 3 of closed at both ends is installed in the support roller main shaft 1 on said; And said going up between support roller main shaft 1 inwall and said interior pipe 3 outer walls has predetermined gap; Like this; When the air inlet that is arranged on said auxilliary axle 21 (or 22) was passed into the normal temperature pressure wind, said pressure wind can be discharged from the air outlet of the auxilliary axle of another root 22 (or 21) along the said Clearance Flow that goes up between support roller main shaft 1 inwall and said interior pipe 3 outer walls again.Like this, pressure wind can fully cool off the said support roller main shaft 1 of going up, and strengthens the cooling effect of the said upper-supporting wheel axle of chain grate of the embodiment of the invention.
The above is merely the preferred implementation of upper-supporting wheel axle of chain grate according to the invention, does not constitute the qualification to protection domain of the present invention.Any any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. a upper-supporting wheel axle of chain grate is characterized in that, said upper-supporting wheel axle of chain grate is positioned at temperature adjustment preheating section and preheating section; Said upper-supporting wheel axle of chain grate comprises the last support roller main shaft that is used to install support roller, and assists axle with said hard-wired two of the support roller main shaft two ends of going up;
The said support roller main shaft of going up is through being installed in the bearings at two said auxilliary axle two ends;
Said upward support roller main shaft and two said auxilliary axles are hollow structure; And the interior pipe of closed at both ends is installed in the support roller main shaft, and said going up between support roller main shaft inwall and the said outer wall of inner tube has predetermined gap on said;
Two said auxilliary axles are respectively arranged with air inlet and air outlet.
2. upper-supporting wheel axle of chain grate according to claim 1 is characterized in that, said interior pipe comprises interior tube body, is positioned at said tube body two ends, and two Taper Pipes that are fixedly connected with said interior tube body.
3. upper-supporting wheel axle of chain grate according to claim 2 is characterized in that, said Taper Pipe passes through the sealing plate sealing and fixing away from the end of tube body in said, and said sealing plate is specially flat board or arc plate.
4. upper-supporting wheel axle of chain grate according to claim 2 is characterized in that, said interior pipe is fixed through being welded on said interior pipe and the said at least one group of back-up block of going up between the support roller main shaft inwall.
5. upper-supporting wheel axle of chain grate according to claim 4 is characterized in that, each Taper Pipe of said interior pipe and said going up between the support roller main shaft inwall are welded one group of back-up block.
6. according to claim 4 or 5 described upper-supporting wheel axle of chain grate, it is characterized in that every group of said back-up block comprises and said first chapelet piece going up the welding of support roller main shaft inwall, with second chapelet piece of said Taper Pipe welding; Said first chapelet piece welds fixing with said second chapelet piece mutually.
7. upper-supporting wheel axle of chain grate according to claim 6 is characterized in that, said first chapelet piece has the curved surface that matches with said upward support roller main shaft inwall.
8. upper-supporting wheel axle of chain grate according to claim 7 is characterized in that, said first chapelet piece is specially to have and said the match square steel of cambered surface of support roller main shaft inwall of going up.
9. upper-supporting wheel axle of chain grate according to claim 6 is characterized in that, said second chapelet piece has the curved surface that matches with said Taper Pipe.
10. upper-supporting wheel axle of chain grate according to claim 9 is characterized in that, said second chapelet piece is specially the metal derby with the curved surface that matches with said Taper Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101745294A CN101672574B (en) | 2009-09-28 | 2009-09-28 | Upper-supporting wheel axle of chain grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101745294A CN101672574B (en) | 2009-09-28 | 2009-09-28 | Upper-supporting wheel axle of chain grate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672574A CN101672574A (en) | 2010-03-17 |
| CN101672574B true CN101672574B (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101745294A Active CN101672574B (en) | 2009-09-28 | 2009-09-28 | Upper-supporting wheel axle of chain grate |
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| Country | Link |
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| CN (1) | CN101672574B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818027B (en) * | 2012-08-05 | 2015-01-14 | 许静 | Sealing riding wheel group |
| CN103822481B (en) * | 2014-03-21 | 2016-01-06 | 秦皇岛西重所燕大重型机械研究院有限公司 | Exhausting cooled upper-supporting wheel axle drying grate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19503187A1 (en) * | 1995-02-01 | 1996-08-08 | Krupp Polysius Ag | Travelling grate for processing, e.g., cooling using gas, solids |
| US5630864A (en) * | 1995-11-24 | 1997-05-20 | Rierson; David W. | Method of processing ore on a traveling grate |
| CN2603366Y (en) * | 2002-12-26 | 2004-02-11 | 首钢总公司 | Flexible axle grate bed for chain grate machine |
| CN2814020Y (en) * | 2005-07-15 | 2006-09-06 | 中冶长天国际工程有限责任公司 | Chain grate sprocket engaging driving device |
| CN201145477Y (en) * | 2007-10-17 | 2008-11-05 | 山东省冶金设计院有限责任公司 | Chain wheel spindle of drying grate |
| CN201169610Y (en) * | 2008-04-03 | 2008-12-24 | 中冶北方工程技术有限公司 | Large-scale chain grid machine operation grid bed |
-
2009
- 2009-09-28 CN CN2009101745294A patent/CN101672574B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19503187A1 (en) * | 1995-02-01 | 1996-08-08 | Krupp Polysius Ag | Travelling grate for processing, e.g., cooling using gas, solids |
| US5630864A (en) * | 1995-11-24 | 1997-05-20 | Rierson; David W. | Method of processing ore on a traveling grate |
| CN2603366Y (en) * | 2002-12-26 | 2004-02-11 | 首钢总公司 | Flexible axle grate bed for chain grate machine |
| CN2814020Y (en) * | 2005-07-15 | 2006-09-06 | 中冶长天国际工程有限责任公司 | Chain grate sprocket engaging driving device |
| CN201145477Y (en) * | 2007-10-17 | 2008-11-05 | 山东省冶金设计院有限责任公司 | Chain wheel spindle of drying grate |
| CN201169610Y (en) * | 2008-04-03 | 2008-12-24 | 中冶北方工程技术有限公司 | Large-scale chain grid machine operation grid bed |
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| CN101672574A (en) | 2010-03-17 |
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